Pith Number

pith:5PCCJT6U

pith:2011:5PCCJT6U7P6G7PC4KJ67BHEPQ4

not attested not anchored not stored refs pending

An Algebraic Characterization of Rainbow Connectivity

Ambedkar Dukkipati, Prabhanjan Ananth

arxiv:1109.2291 v1 · 2011-09-11 · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5PCCJT6U7P6G7PC4KJ67BHEPQ4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:13:38.072971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebc424cfd4fbfc6fbc5c527df09c8f871c6539cfc5848ba65971bf41d0fe6058

Aliases

arxiv: 1109.2291 · arxiv_version: 1109.2291v1 · doi: 10.48550/arxiv.1109.2291 · pith_short_12: 5PCCJT6U7P6G · pith_short_16: 5PCCJT6U7P6G7PC4 · pith_short_8: 5PCCJT6U

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/5PCCJT6U7P6G7PC4KJ67BHEPQ4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: ebc424cfd4fbfc6fbc5c527df09c8f871c6539cfc5848ba65971bf41d0fe6058

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb90067bc8a5de86fc945f3ef5ec96c942669c69f370691d0ee3fe516ea59d6a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2011-09-11T07:55:04Z",
    "title_canon_sha256": "8e36c70107cc8dff720ab22c71a04c40a6befbc48c7008e75d5f550f97ba0f8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2291",
    "kind": "arxiv",
    "version": 1
  }
}